Publication Date
2012
Document Type
Thesis
Committee Members
Kuan-lun Chu (Committee Member), Kefu Xue (Committee Member), Yan Zhuang (Advisor)
Degree Name
Master of Science in Engineering (MSEgr)
Abstract
Leaky wave antenna continuously attracts a lot interests for tuning the radiation direction over a large angle. Various types of leaky wave antenna have been developed since 1940. However, most of these leaky wave antennas suffered from their excessive volume and the required wide range of operating frequency (bandwidth) to achieve a large tuning angle. To circumvent these challenges, research in this thesis is focused on implementation of material (like PZT) with high dielectric constant (k) in a rectangular waveguide leaky wave antenna. Due to the high dielectric constant of PZT ~ 1,900, the propagation wavelength in the waveguide can be dramatically shortened. This allows the leaky wave antenna to be operated at much lower frequency, or to have a significant volume reduction. In addition, using high k material enables bandwidth narrowing. In experiments, 70 degree tuning angle was observed by changing frequency from 2.1217 GHz to 2.235 GHz in a proto-type leaky wave antenna filled with material of . The tuning angle can be further adjusted by the slot length and distance.
Page Count
52
Department or Program
Department of Electrical Engineering
Year Degree Awarded
2012
Copyright
Copyright 2012, all rights reserved. This open access ETD is published by Wright State University and OhioLINK.
